user_pseudo

User 
------
	public_key = ''
	secret_ley = ''

NEW_MESSAGE = 'new_msg' #send a new message from node to the user
SEND_MESSAGE = 'send_msg' #send a message from user to node
EXIT = 'exit' # Send exit message from user to node
REGISTER = 'register' #send a register request from user to node
SEND_FRAG = 'send_frag' #send a frag value from user to node 




def keygen():

def serialize_fragment_arr(frag):

def deserialize_fragment(serialized_frag): 

def create_frags(public_keys):

def notify_node(command, args):